/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
Sets a curve's value given its key
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=URigHierarchy) void SetCurveValue ( [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) InKey, float InValue, bool bSetupUndo )